diff --git a/data-node/src/test/java/org/graylog/datanode/integration/DatanodeSecuritySetupIT.java b/data-node/src/test/java/org/graylog/datanode/integration/DatanodeSecuritySetupIT.java
index f0f0b9e914..9eaf158f51 100644
--- a/data-node/src/test/java/org/graylog/datanode/integration/DatanodeSecuritySetupIT.java
+++ b/data-node/src/test/java/org/graylog/datanode/integration/DatanodeSecuritySetupIT.java
@@ -93,7 +93,7 @@ public class DatanodeSecuritySetupIT {
         waitForOpensearchAvailableStatus(backend.getDatanodeRestPort());
 
         given()
-                .auth().basic("admin", "admin")
+                .auth().preemptive().basic("admin", "admin")
                 .trustStore(buildTruststore(httpCert, "password"))
                 .get("https://localhost:" + backend.getOpensearchRestPort())
                 .then().assertThat()
diff --git a/full-backend-tests/src/test/java/org/graylog/plugins/views/FavoritesIT.java b/full-backend-tests/src/test/java/org/graylog/plugins/views/FavoritesIT.java
index 14816d1ed0..8dbc554a5b 100644
--- a/full-backend-tests/src/test/java/org/graylog/plugins/views/FavoritesIT.java
+++ b/full-backend-tests/src/test/java/org/graylog/plugins/views/FavoritesIT.java
@@ -60,7 +60,7 @@ public class FavoritesIT {
     void testCreateDeleteFavorite() {
         given()
                 .spec(requestSpec)
-                .auth().basic("john.doe1", "asdfgh")
+                .auth().preemptive().basic("john.doe1", "asdfgh")
                 .when()
                 .put("/favorites/1")
                 .then()
@@ -69,7 +69,7 @@ public class FavoritesIT {
 
         var validatableResponse = given()
                 .spec(requestSpec)
-                .auth().basic("john.doe1", "asdfgh")
+                .auth().preemptive().basic("john.doe1", "asdfgh")
                 .when()
                 .get("/favorites")
                 .then()
@@ -80,7 +80,7 @@ public class FavoritesIT {
 
         given()
                 .spec(requestSpec)
-                .auth().basic("john.doe1", "asdfgh")
+                .auth().preemptive().basic("john.doe1", "asdfgh")
                 .when()
                 .delete("/favorites/1")
                 .then()
diff --git a/full-backend-tests/src/test/java/org/graylog/plugins/views/ScriptingApiResourceIT.java b/full-backend-tests/src/test/java/org/graylog/plugins/views/ScriptingApiResourceIT.java
index 3db03b6886..529c0f09ad 100644
--- a/full-backend-tests/src/test/java/org/graylog/plugins/views/ScriptingApiResourceIT.java
+++ b/full-backend-tests/src/test/java/org/graylog/plugins/views/ScriptingApiResourceIT.java
@@ -139,7 +139,7 @@ public class ScriptingApiResourceIT {
 
         final ValidatableResponse validatableResponse = given()
                 .spec(requestSpec)
-                .auth().basic("john.doe", "asdfgh")
+                .auth().preemptive().basic("john.doe", "asdfgh")
                 .when()
                 .body("""
                          {
diff --git a/full-backend-tests/src/test/java/org/graylog/plugins/views/StartPageIT.java b/full-backend-tests/src/test/java/org/graylog/plugins/views/StartPageIT.java
index 1dc672427b..18f2414a51 100644
--- a/full-backend-tests/src/test/java/org/graylog/plugins/views/StartPageIT.java
+++ b/full-backend-tests/src/test/java/org/graylog/plugins/views/StartPageIT.java
@@ -76,7 +76,7 @@ public class StartPageIT {
         final String defaultIndexSetId = api.indices().defaultIndexSetId();
         var stream1Id = api.streams().createStream("Stream #1", defaultIndexSetId, new Streams.StreamRule(StreamRuleType.EXACT.toInteger(), "stream1", "target_stream", false));
 
-        var validatableResponse = api.get("/startpage/recentActivity", Users.LOCAL_ADMIN, Map.of(), 200).log().body();
+        var validatableResponse = api.get("/startpage/recentActivity", Users.LOCAL_ADMIN, Map.of(), 200);
         validatableResponse.assertThat().body("recentActivity[0].item_id", equalTo(stream1Id));
     }
 }
diff --git a/graylog2-server/src/test/java/org/graylog/testing/completebackend/apis/GraylogApis.java b/graylog2-server/src/test/java/org/graylog/testing/completebackend/apis/GraylogApis.java
index 787814d042..52676f4c21 100644
--- a/graylog2-server/src/test/java/org/graylog/testing/completebackend/apis/GraylogApis.java
+++ b/graylog2-server/src/test/java/org/graylog/testing/completebackend/apis/GraylogApis.java
@@ -96,7 +96,7 @@ public class GraylogApis {
         return given()
                 .config(backend.withGraylogBackendFailureConfig())
                 .spec(requestSpecification)
-                .auth().basic(user.username(), user.password())
+                .auth().preemptive().basic(user.username(), user.password())
                 .when();
     }
 
diff --git a/graylog2-server/src/test/java/org/junit/platform/engine/support/hierarchical/ContainerMatrixHierarchicalTestEngine.java b/graylog2-server/src/test/java/org/junit/platform/engine/support/hierarchical/ContainerMatrixHierarchicalTestEngine.java
index acb028f33b..e7ec0178c9 100644
--- a/graylog2-server/src/test/java/org/junit/platform/engine/support/hierarchical/ContainerMatrixHierarchicalTestEngine.java
+++ b/graylog2-server/src/test/java/org/junit/platform/engine/support/hierarchical/ContainerMatrixHierarchicalTestEngine.java
@@ -135,7 +135,7 @@ public abstract class ContainerMatrixHierarchicalTestEngine<C extends EngineExec
                 .accept(JSON)
                 .contentType(JSON)
                 .header("X-Requested-By", "peterchen")
-                .auth().basic("admin", "admin");
+                .auth().preemptive().basic("admin", "admin");
     }
 
     protected HierarchicalTestExecutorService createExecutorService(ExecutionRequest request) {